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arXiv 1109.4181astro-ph.CO
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活动星系核中黑洞的质量:对NLS1s的启示

Masses of Black Holes in Active Galactic Nuclei: Implications for NLS1s

Bradley M. Peterson

摘要:

我回顾活动星系核黑洞质量计算发射线混响映射数据,特别注意的假设和警告。我讨论了活动星系核光度和宽线区域半径之间的经验关系,它支持了大多数活动星系核质量估计的间接方法。我还讨论了如何线宽的特点,在这种方法和说明如何不同的方式测量的线宽可能会导致系统误差的质量规模。我讨论了具体的影响NLS 1星系,并考虑是否NLS 1现象是更好地解释源倾角或爱丁顿率,并得出结论,有证据表明,这两种影响的贡献因素,至少高爱丁顿率NLS 1的物理相似的一些高光度类星体。

英文摘要:

I review how AGN black hole masses are calculated from emission-line reverberation-mapping data, with particular attention to both assumptions and caveats. I discuss the empirical relationship between AGN luminosity and broad-line region radius that underpins the indirect methods by which most AGN masses are estimated. I also discuss how line widths are characterized in this method and illustrate how different ways of measuring the line-widths can lead to systematic errors in the mass scale. I discuss specific implications for NLS1 galaxies and consider whether the NLS1 phenomenon is better explained by source inclination or by Eddington rate, and conclude that there is evidence that both of these effects are contributing factors and that at least the high-Eddington rate NLS1s are physically similar to some high-luminosity quasars.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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